Summary This PhD research examines institutional explanations for the use of performance information (PI) to learn and improve by government agencies. Despite widespread criticism of and disappointment with New Public Management (NPM) reforms, performance budgeting (PB) is credited with contributing to efficiency and effectiveness in several public sector agencies. The fact that an agency successfully uses performance information to realize improvements or efficiency gains may however be the result of a diversity of factors that bear little or no connection to the PB system itself. Corporate culture, public sector motivation, leadership commitment and discretionary power of managers have already been identified as important in this res...